Are Blizzard doing Enough?

Blizzard the makers of World of Warcraft - are obviously even more successful than they already were after hitting the big time with WoW.

Blizzard were already a popular and successful games company, with early winners such as Diablo, Diablo2, Starcraft and the Warcraft Series.

Now with WoW achieving statistics of at least 9 million players worldwide - ALL of which are paying $20 US per month to play; this makes for some serious cash. Serious cash that Blizzard are earning.

With expansions such as Burning Crusade; it seems Blizzard are focusing on the future. Blizzcon was also a good idea to look ahead. However, are Blizzard doing enough to make WoW viable for a long future?

With all that money, surely things like the Tuesday night maintenance time could be reduced or even worked around?

With the amount of cash Blizzard are earning; couldn't they be adding to WoW almost daily? Its a little tough to think that expansions cost additional money on top of the subscription fees too - these guys are really milking this cow.

What does everyone think? Is Blizzard doing enough for their earnings? Or could they do more? Look forward to hearing from WoW folks! (Just comment below)